.app{display:flex;height:100vh}.sidebar{width:200px;background:#f4f4f4;padding:1rem}.sidebar ul{list-style:none;padding:0}.sidebar li{padding:.5rem;cursor:pointer}.sidebar li.active{background:#ddd;font-weight:700}.main-content{flex:1;padding:1rem;overflow-y:auto}.token-management{margin-bottom:2rem}.token-management label{display:block;font-weight:700;margin-bottom:.5rem}.token-management textarea{width:100%;height:80px;margin-bottom:1rem;padding:.5rem;font-size:1rem;border:1px solid #ddd;border-radius:4px}.button-group{display:flex;gap:1rem}button{padding:.5rem 1rem;border:none;border-radius:4px;cursor:pointer}button:hover{opacity:.9}button.danger{background:#e74c3c;color:#fff}button:not(.danger){background:#3498db;color:#fff}.error,.loading{margin-top:1rem;color:#e74c3c}table{width:100%;border-collapse:collapse;margin-top:1rem}table td,table th{border:1px solid #ddd;padding:.5rem}